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LakeQuality

Arcadia Lake

Hampshire County, MassachusettsView mapDirections

A
Excellent

Clarity, phosphorus, and algae all sit in the cleanest band for this region.

Water temp
No reading
No gauge
Clarity
No reading
No sample
Level
No reading
No gauge
Trend
No reading
Not enough history
  • Oligotrophic
  • Impaired · Algal growth
  • #1 of 4 in the county
  • Limited data
See the measurementsDirectionsWhere to stay

Arcadia Lake in Hampshire County, Massachusetts has a water quality grade of A (Excellent). Chlorophyll-a (algae): 1.1 µg/L.

Type
Oligotrophic
Chlorophyll-a
1.1 µg/L
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Arcadia Lake is a cold, clear oligotrophic lake in Hampshire County, Massachusetts. Water quality is graded A based on 1 sampling years through 2016. Compared to the 3 other monitored lakes in Hampshire County, Arcadia Lake ranks #1 for water quality.

Source: EPA Water Quality Portal sampling records, MassDEP, last sampled 2016-09-13. Grade methodology: LakeQuality methodology.

Swimming Safety

Grade only

Limited data

Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

The A is nutrients and algae, not a swimming clearance. Arcadia Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nuisance exotic species, nutrients (phosphorus, nitrogen). Check local advisories before you swim.

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Water Quality Grade: A (Excellent)

No clarity data. Chlorophyll-a 1.1 µg/L. TSI 32. The letter is not a swimming clearance.

MetricValueGrade
Water Clarity (Secchi Depth)No recent samples
PhosphorusNo recent samples
Chlorophyll-a (Algae)1.1 µg/LGood
Trophic State Index (TSI)32Oligotrophic

Low nutrients, clear water. The letter is not a swimming clearance.

Fishing Arcadia Lake

EPA Impairment Status

Arcadia Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Algal growthNuisance exotic speciesNutrients (phosphorus, nitrogen)

Source: EPA ATTAINS assessment unit MA34005 · Official waterbody report

County Ranking

Ranked #1 of 4 lakes in Hampshire County

Nearby Lakes in Hampshire County

CMetacomet LakeMesotrophic0.5 miView →NRKnights Pond—View →NRForge Pond—View →NRBeaver Lake—View →NRLake Warner—View →NRWare River Reservoir—View →

Frequently asked questions about Arcadia Lake

Where is Arcadia Lake?

Arcadia Lake is a lake in Hampshire County, Massachusetts. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Arcadia Lake?

Arcadia Lake in Hampshire County, Massachusetts has a water quality grade of A (Excellent). Chlorophyll-a (algae): 1.1 µg/L.

Is Arcadia Lake safe to swim in?

The A is nutrients and algae, not a swimming clearance. Arcadia Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nuisance exotic species, nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Explore Arcadia Lake across LakeQuality

Lake Fishing Forecast

Species activity outlook by water temperature and season

Massachusetts Lake Trips

Where to stay at Massachusetts's top lakes, each with its grade

Oligotrophic Lakes

Low nutrients, clear water. The letter is not a swimming clearance.

The State of Massachusetts's Lakes

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Grade A/B + low algae filter

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Other Grade A Lakes in Massachusetts

Atkins Reservoir

Franklin County · Excellent

Roaring Brook Lake

Franklin County · Excellent

Gaston Pond

Worcester County · Excellent

Tully Pond

Franklin County · Excellent

Hamilton Reservoir

Hampden County · Excellent

Quacumquasit Pond

Worcester County · Excellent

Oligotrophic Lakes in Massachusetts

Long PondHallockville PondLily PondFall Brook Reservoir

Where this data comes from

3 measurements from 1 monitoring station, 2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Massachusetts Department of Environmental Protection (MassDEP)MASSDEP3 samples · 2016

Analytical methods

  • 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database